\begin{tikzpicture}
  \begin{scope}[x=0.7cm, y=0.7cm, step=0.7cm, thick]
    \board{4}{4};  
    \qb{(4,4)};
    \qw{(1,1)};
    \qw{(1,2)};
    \qw{(1,3)};
    \qw{(2,1)};
    \qw{(2,3)};
    \qw{(3,1)};
    \qw{(3,2)};
    \qw{(3,3)};
  \end{scope}
\end{tikzpicture}
